THE STUDY OF FRAGMENTATION PROCESSES IN pp ¯ → ppπ ¯ +π− REACTION AT 32 GeV/c MOMENTUM SEPARATED BY CLUSTERS SEARCH METHODS IN MULTIDIMENSIONAL PHASE SPACE
Sadykov T.Kh. Idrissova T.K. Zhautykov B.O. Serikkanov A.S. Kantarbayeva D.O. Burtebayev N. Saduyev N.O. Yerezhep N.O.
2021Jagiellonian University
Acta Physica Polonica B, Proceedings Supplement
2021#14Issue 4841 - 848 pp.
We have described the clusters search methods in detail. These methods were applied to pp ¯ → ppπ ¯ +π− reaction at 32 GeV/c momentum and we have separated 7 clusters. The features of those clusters were obtained. This reaction is dominated by two production mechanisms, one-vertex fragmentation and simultaneous two-isobars excitation (two-vertex fragmentation). For a detailed study of one-vertex fragmentation, the clusters search method has been used in the rest frame of three particles selected from the final state and 6 clusters have been separated. The study of them shown the essential role of resonances amplitudes interference.
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Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Satbayev University, Institute of Physics and Technology, Almaty, 050032, Kazakhstan
Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Institute of Nuclear Physics
Satbayev University
Al-Farabi Kazakh National University
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